pygame.image.load(shop): return Surface
pygame.image.load(pistol): return Surface
pygame.image.load(revolver): return Surface
pygame.image.load(uzi): return Surface
pygame.image.load(shotgun): return Surface
pygame.image.load(ak47): return Surface
pygame.image.load(assault rifle): return Surface
pygame.image.load(rockets): return Surface
pygame.image.load(sniper): return Surface
pygame.image.load(laser): return Surface